Improvement in the manufacture of quercitron-bark



M. WINGER.

Manufacture of Quercitroh Bark. v

No. 108,669. Patented Oct. 25, 1870.v

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("duitrd swa MARTIN WINGER, or EPHRATA, PENNSYLVANIA.

Letters Patent No. 108,669. dated October 25, 1870.

IMPROVEMENT IN THE MANUFACTURE OF ,QUE RCITRON-BARK.

' I The Schedule referred to in these Letters Patent and-making part of thesame citronbarkso as to yield a soft fibrous product, free from knots or hard lumps, and that needs no subsequent screening, a thing that cannot be accomplished by the use. of the chaser. or vertical .re-volvingstones heretofore in use in connection with-a crushing-mill but by submitting the previously-crushed bark to the rubbing action, betweena pair of horizontal stones, produces results not heretofore attained. v

The accompanying drawiug'will illustrate my arrangement of a combined mill, in which- ]!igure 1 is a perspective view.

Figure 2, a front elevation, and

Figure 3, a. side elevation.

Figure 4, the runner, spindle, and lever-step.

A shows an ordinary iron mill, of any approved construction, on a table or platform, a.

B shows the case over a stationary millstone and runner, made adjustable by anyof the ordinary means in use, ou-its platform I).

0 is a cogged wheel on the main shaft E, which has also a cogged or spur-wheel, G, and is provided with a pulley or bevel-pinion, L, fig. 2, to which the power is communicated.

The upper wheel 0 drives the pinion 1), on the shaft 61, in the vertical grinding-mill A.

The lower wheel G drives the pinion H on the spindle Eof the runner of the horizontal mill.

The several steps a f, and bearings, with the sup V porting frame-work, are clearly shown.

Having made the grinding of quercitrou a specialty for a number of years, and Ma considerable cost of time and money endeavored to perfect the same, I

find that by submitting the crushed bark to the action of ordinary millstonesthe happiest result is produced by effectually grinding the same in a more uniform.

and thorough manner.

Stones of this kind have been considered iuapplicable for grinding bark, and I am not aware that they were ever used for this purpose before I tested the same; I, however, do not claim either .the vertical iron "mill or crusher, nor the horizontally-revolvil1g stone and stationary millstone and appliances, as such are common, but rather their application to a new purpose and the results of producing a superior article of manufacture by such use; therefore, 7

\Vhat I claim as my'inveution, and desire to 'secure by Letters Patent, is V 1. The improved method of treating and manufacturing quercitron-bark by submitting the previouslycrushed bark to the rubbing action between a pair of horizontal stones, substantially in the manner and for the purpose specified. p

2. The soft fibrous product of quercitron-bark,

manufactured substantially in the manner herein specified.

MARTIN WIN GER.

Witnesses WM. B. WILEY,'

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